Instructables

Reconditioning New Idea Corn Sheller

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This New Idea corn sheller was purchased from a retired farmer near Muscatine, IA in 2008. After retirement, it was now time to restore it to its near original condition.
New Idea purchased the Sandwich Company of Sandwich, Ill in 1930, which provided New Idea with a much larger line of farm equipment. One of the products was a very fine corn sheller. The Sandwich Company had been developing small corn sheller since 1856.
The farmer who sold the sheller indicated that he remembers seeing this sheller in the mid-1940's. Therefore it must have been made between 1930 and 1945.
The two photos below show the corn sheller as purchased and after restoring. Each of the steps listed above following show the intermediate steps that were completed to restore the New Idea corn sheller.to its near original condition.
 
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Step 2: Disassembly

Many pictures were taken during the disassembly to record information to assist in reassembly. The frame and Internal parts were very rusty as well as the frame. Some effort was required to remove the bearings from the shafts. As can be seen in the final two pictures in this step every part was removed and could then be cleaned as shown in the next step.

Step 3: Cleaning Failure

Picture of Cleaning Failure
DSC02986.JPG
DSC02985.JPG
The first attempt to remove the rust from parts was by electrolytic derusting. It is a technique for returning surface rust to iron. by using the effect of a small low voltage electric current and a suitable electrolyte. As shown in the last picture, the part after 12 hours in the bath still had considerable amount of rust. Therefore the method was abandoned.
yokozuna2 years ago
Very nicely done. In my opinion, you should switch the order of the first two images so the finished project is the one that shows up as your main image. Five stars sir.
renicolai (author)  yokozuna2 years ago
Thanks for the suggestion on switching the images. The finished sheller should now appear first.
It does, and it looks great.
kill-a-watt2 years ago
neat-o, but we need to see some action photos. I've never seen a corn sheller in action before.
YouTube shall provide. Here's another brand of machine, in action. If you want, you can skip ahead to 2m20s for the actual corn shelling action.



(Thanks to the OP for allowing embedding)
homemade, perfect for a reMake:

youtube.com/watch?v=lbT8wvEEc-U

rimar20002 years ago
Very good restoration work, congratulations!

To remove the rust I use steel brush and after I apply phosphatizant liquid. But your sander method is very effective.
Phil B2 years ago
I remember these shellers very well. We never had one on our farm, but they were always fun as a plaything when visiting a farm where a friend lived. There is a geared effect that makes some of the internal parts turn very fast. It was fun to see how fast we could turn the crank, and it was fun to see how rapidly the kernels were stripped from the cob when an ear was inserted into the top of the sheller. If I remember, the operator placed a bucket under the sheller to catch the shelled kernels of corn. I think I have seen the sheet metal hoppers resting or hanging somewhere, but do not remember ever seeing one actually on one of the shellers. (I grew up near Monticello, Iowa; which is not very far from Muscatine.) Thank you for showing clearly what is on the inside of these shellers.
renicolai (author)  Phil B2 years ago
Phil B,
Thanks for your comments.
Your memory is good in that a bushel basket or box is placed below the sheller to collect the shelled corn. The cops are ejected out the side opposite the side where the corn ears are inserted. I have attached two pictures of an advertisement brochure that was produced by New Idea. Enjoy.
renicolai
Brochure corn sheller 1.jpgBrochure corn sheller 2.jpg
Thank you for the original brochure. A friend moved into a house on property where there was an old garage. In it were quite a few original brochures and booklets for J. I. Case threshers and tractors from the 1930s. I also remember it was fun to see how fast the cobs came flying out the side. If OSHA had been around 30 or more years earlier, these machines would never have made it to market! Yet, I never heard of anyone receiving any kind of injury on one of these. We all had enough sense not to put our hands into moving machinery.
mikeasaurus2 years ago
Great recondition!
It's too bad the electrolytic derusting didn't work, I would have liked to see more information and techniques using that method, it's hard to beat sandblasting though.

Assuming it'll remain non-operational have you given any thought to covering the outside of the galvanized (aluminum?) with a clear coat to make it pop? Might really go well with that orange!
renicolai (author)  mikeasaurus2 years ago
The original plan was to paint the galvanized sheet metal, but this would have destroyed the look. So the metal was only scraped clean and buffed with a pad made especially for metal. Thanks for the tip to apply clear coat.
Once ear corn is available later this fall, the plan is to make a video of the sheller's operation.
renicolai
kelseymh2 years ago
Very nicely written up! Some might consider this overly specialized, but it's got some very nice techniques for dealing with antique mechanicals.